Resolving Structure in the Debris Disk around HD 206893 with ALMA

Debris disks are tenuous, dusty belts surrounding main-sequence stars generated by collisions between planetesimals. HD 206893 is one of only two stars known to host a directly imaged brown dwarf orbiting interior to its debris ring, in this case at a projected separation of 10.4 au. Here we resolve...

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Bibliographic Details
Published in:The Astrophysical journal 2021-08, Vol.917 (1), p.5
Main Authors: Nederlander, Ava, Hughes, A. Meredith, Fehr, Anna J., Flaherty, Kevin M., Su, Kate Y. L., Moór, Attila, Chiang, Eugene, Andrews, Sean M., Wilner, David J., Marino, Sebastian
Format: Article
Language:English
Subjects:
Angular resolution
Astrophysics
Brown dwarfs
Debris
Debris disks
Density distribution
Detritus
Exoplanet dynamics
Extrasolar planets
Interferometry
Main sequence stars
Planet formation
Radio telescopes
Submillimeter astronomy
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Summary:Debris disks are tenuous, dusty belts surrounding main-sequence stars generated by collisions between planetesimals. HD 206893 is one of only two stars known to host a directly imaged brown dwarf orbiting interior to its debris ring, in this case at a projected separation of 10.4 au. Here we resolve structure in the debris disk around HD 206893 at an angular resolution of 0.″6 (24 au) and wavelength of 1.3 mm with the Atacama Large Millimeter/submillimeter Array (ALMA). We observe a broad disk extending from a radius of
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/abdd32